I think richard is talking about the synergy between T1 and he-400, so unless you own he-400, I don't see how this would be bad news for you. He is saying that hifimediy is less bright (and softer) than T1 so it tames the treble of he-400 and therefore has better synergy. If you are using T1 you should definitely try one of the better tubes available / try to work the synergy issues with tube rolling (if you have any). I prefer to roll tubes rather than DACs.
And who is saying that MM stack would be better than T1? You shouldn't feel bad reading one or two negative comments when this thread is full of positive reviews and happy customers. You should also make your own impression actually using and experimenting with the product. For people who has followed this thread for a long time know that:
a) T1 has enough juice to drive even some of the more power hungry headphones (see the gain settings for optimal performance)
b) if T1 amp power is somehow insufficient you can always get better amp and use T1 as a dac only
c) T1 is on the bright side, so if you own med/treble heavy cans such as HD 800, AKG K/Q series, Grados, audio technicas etc. you should try mellow sounding tube
d) T1 performance excels many rivals in it's price range and can even compete with products costing twice or more as much
e) T1 is NOT tube amp, so those of you looking to get that thick tubey sound might get disappointed
Good comment, Salvatore. It's interesting how easy it is to become defensive when someone says our choice is not for them (or their headphones). I'm pleased enough with the T1 that my next step will be on the headphone side from the HD558 to HD600, but I'm planning to stick with the T1.
Edited by teb1013 - 11/24/13 at 9:03am